Energy Efficient Measures That Add Little or no FirstEnergy Cost Energy to Construction Efficient New Homes Program Lights & Appliances: How To Benefit from the Low-Hanging Fruit 1
2 Optimizing Savings Joy Knapp & Robert Shearer Performance Systems Development July 10, 2012 Lighting & Appliance Choices Attention to Detail Modeling Accuracy Quality Assurance
3 Presentation Goals Installation of ENERGY STAR Appliances and Efficient Lighting. Accurate modeling considerations. Ways to maximize savings and increase builder incentives. 3
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ENERGY STAR V 3.0 Says.. 5 Under the Prescriptive Path only: Lighting & Appliances Where refrigerators, dishwashers, ceiling fans, or exhaust fans are installed, products shall be ENERGY STAR qualified. ENERGY STAR qualified CFLs, LEDs, or pin-based lighting in 80% of fixtures in RESNET-defined Qualifying Light Fixture Locations, shall be installed.
6 L&A Packages Benefits of Energy Efficient Lighting & Appliance Packages: ENERGY STAR brand is recognized by homebuyers. New and Improved CFL products. Dimmable Bulbs 3 Way Bulbs Fancy Fixtures CFLs disguised as incandescent aesthetically pleasing
7 ENERGY STAR Appliances The Home Should be Getting Credit For Refrigerators (kwh/yr) Dishwashers (Energy Factor or EF) Ceiling Fan (CFM/Watt) Exhaust / Ventilation Fans (Watts)
8 CFL and FL Lighting The Home Should be Getting Credit For Interior Fixtures CFL (%) Pin-Based FL (%) Exterior Fixtures (%) Garage Fixtures (%)
9 Much Maligned CFLs Common complaints: CFLs.are ugly. bad light color. are slow to start. don t last as long as claimed. contain Mercury. For more information on all sources of mercury, visit http://www.epa.gov/mercury For more information about compact fluorescent bulbs, visit http://www.energystar.gov/cfls
You ve Come A Long Way, Baby 10
11 What About Mercury? Yes, CFLs contain Mercury but CFLs contain an average of 4 mg. Old Mercury thermometers contained 500 mg! Using a CFL reduces the amount of mercury in the environment by reducing mercury emissions from power plants. For more information on all sources of mercury, visit http://www.epa.gov/mercury For more information about compact fluorescent bulbs, visit http://www.energystar.gov/cfls
12 QA: On-Site Inspection Stage New Homes Onsite inspection Process 1. Exterior Orientation Elevations Measure footprint Outdoor temperature 2. Interior Attic insulation Wall insulation Room by Room lighting count Appliances Document Htg/Clg/DWH Infiltration Duct testing 3. Re-enable appliances 4. Double check all items on the inspection checklist 12
Orientation CFA/Volume Stories Slab Foundation Floors Walls Windows Ceiling Hatch Htg/Clg/DHW Location Leakage Blower Door Ventilation Lighting Appliance Other Pennsylvania 2010-2011 Program Year Results 13 70 On-Site QA Observations 60 50 40 30 20 Observations 10 0 General Envelope Mechanical Duct Infiltration L&A Misc 13
Jan-11 Feb-11 Mar-11 Apr-11 May-11 Jun-11 Jul-11 Aug-11 Sep-11 Oct-11 Nov-11 Dec-11 Pennsylvania 2010-2011 Program Year Results 14 7 of 12 month resulted in post QA models generated more savings 100.00% 90.00% 80.00% 70.00% 60.00% 50.00% 40.00% 30.00% 20.00% 10.00% 0.00% Better Worse Did the post QA model improve? Accurate modeling = Increased savings predictions Accurate modeling = increased builder incentives 14
15 Modeling Considerations 15
Modeling Consideration: Maximizing Builder Incentives 16 Lighting Modeling considerations that increase builder incentives Appliances Mechanical Equipment Mechanical Ventilation Stories Above Grade Windows 16
An Accurate Lighting Count Counts!! 17 5093 sf house, 44,027 cu ft volume. 0% CFL=11,706 kwh=$1570.60 in incentives, $3134 AEC. 100% CFL=14,448 kwh=$1844.80 in incentives, $2844 AEC. Additional $274.20 in incentives, $290 AEC Savings.
18 Lighting Often CFL % findings onsite are higher than modeled Account for all efficient lighting to maximize kwh savings Model LEDs as CFL lighting
Modeling Lighting Accurately 19 Real Program Submittal: Rater defined 60% pin-based CFL Interior fixtures: CFL (%) 0.0 Pin-Based FL (%) 60.0 Exterior Fixtures (%) 0.0 Garage Fixtures (%) 0.0
Modeling Lighting Accurately 20 Actual QA Findings: 137 Photos Taken 67 Interior fixtures: 21 CFL (31%) 41 pin-based (61%) 19 Ext. lights (100%) 7 Garage lights (100%) 93 total lights Only 5 incandescent (7% of Int. Lighting)
Interior vs. Exterior vs. Garage 21 Interior Fixtures CFL (%) The ratio, expressed as a percentage, of (compact fluorescent lights in Qualifying Interior Light Fixtures) to (all light fixtures in Qualifying Interior Light Fixture Locations). This is really focused on any Edison-base (screw-in) lamps, whether LED or Fluorescent. Pin-Based FL (%) The ratio, expressed as a percentage, of (pin-based fluorescent lights in Qualifying Interior Light Fixtures) to (all light fixtures in Qualifying Interior Light Fixture Locations). Exterior Fixtures (%) The ratio, expressed as a percentage, of (lights in Qualifying Exterior Light Fixtures) to (all light fixtures in Qualifying Exterior Light Fixture Locations). In other words, this value could be as high as 100%. Garage Fixtures (%) The ratio, expressed as a percentage, of (lights in Qualifying Exterior Light Fixtures) to (all light fixtures in Qualifying Exterior Light Fixture Locations). In other words, this value could be as high as 100% RESNET Standard trumps REM/Rate Help
22 Modeling Appliances Take Pictures Eliminates model number errors Easy to save and file - Convenience
23 QA Review: Appliances Model using REM defaults Appliances Refrigerator 691 kwh Dishwasher 0.46 Ef Model using ES Appliances Refrigerator 425 kwh Dishwasher 0.70 Ef 325 increase in kwh savings. Savings are not just in Lights & Appliances!
24 Energy Factor & kwh/yr EF -- This is the standard method of evaluating dishwashers; it combines the electrical energy and the water heating energy. Units are cycles/kwh. kwh/yr -- On modern EnergyGuide labels, this combines the electrical and water heating energy, and is the new measure of dishwasher energy consumption
25 Appliance Websites http://www.energystar.gov/ http://www.aham.org/ Search Engines Dishwashers Qualified Product List List Posted on April 04, 2012 Below are currently qualified ENERGY STAR models available for sale in the U.S. Product Brand Name Product Model Number Size Annual Energy Use (kwh/year) Federal Standard (kwh/year) % Better than Federal Standard (kwh/year) Water Use (Gallons/Cycle) Energy Factor (EF) Date Qualified Amana ADB1400PY** Standard 288 355 19% 3.41 0.76 9/30/2011 Asko D5424 Standard 276 355 22% 3.87 0.78 1/27/2012 Asko D5434 Standard 231 355 35% 3.87 0.93 1/27/2012 Asko D5524 Standard 276 355 22% 3.87 0.78 1/27/2012 Asko D5534 Standard 231 355 35% 3.87 0.93 1/27/2012 Asko D5554 Standard 206 355 42% 4.12 1.05 1/27/2012 Asko D5624 Standard 276 355 22% 3.87 0.78 1/27/2012 Asko D5634 Standard 231 355 35% 3.87 0.93 1/27/2012 Asko D5654 Standard 206 355 42% 4.12 1.05 1/27/2012 Asko D5894A Standard 171 355 52% 4.10 1.26 12/12/2011 Asko D5954 Standard 276 355 22% 3.87 0.78 1/27/2012
26 PA & OH Program Reminder Download and Print! Builder Signage is Available! Post in your model and spec homes! Versions available for PA and OH Utilities. New Builder Signage! 26
Thank You for your participation in our program! 27 Need More Information? Programmatic Support Pennsylvania Joy Knapp, Program Coordinator (814) 282-3689 jknapp@psdconsulting.com Ohio Rob Shearer, Program Coordinator (216) 317-5880 rshearer@psdconsulting.com Technical & QA Support Pennsylvania & Ohio Jim Phelps, QA Manager (814) 814-4456 jknapp@psdconsulting.com John Wozniak, Technical Specialist (814) 449-3312 jwozniak@psdconsulting.com